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INFICON Composer Elite Gas Concentration Monitor User Manual

Page 97

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Composer Elite Operating Manual

Table 5-21 Status commands

S

Command

ID

Name

Parameter

Range

(low/high)

Data

Type

Note

0

Current Data

Reserved (U20 - Bit 31)

Must always be 0.

Bit Pattern (U20 - Bit 30)

The value of the 4 Byte word returned.

Measurement Mode

(U20 - Bit 29)

0-6

Encode 0 = Idle

1 = Ready
2 = Search
3 = Track
4 = Quick Track
6 = Baseline

Concentration

(U20 - Bit 28)

(mole%)

Float

The current concentration value.
(mole%)

Temperature 1

(U20 - Bit 27)

0.0 -

71.00(ºC)

99.999

Float

The current temperature value of
Acoustic Sensor's resonant chamber.
99.999 if cable is disconnected.

Temperature 2

(U20 - Bit 26)

0.0 -

75.00(ºC)

99.999

Float

The current temperature value of
Acoustic Sensor's inlet tube. 99.999 if
cable is disconnected.

Errors

(U20 - Bit 25)

0 - 0xFFFF

FFFF

Encode Current error value. See

Table 5-22 on

page 5-32

.

Warning

(U20 - Bit 24)

0 - 0xFFFF

FFFF

Encode Current warning value. See

Table 5-23

on page 5-34

.

Heater Status 1

(U20 - Bit 23)

0-6

Short

Status of Acoustic Sensor's resonant
chamber heater:
0 = Off
1 = Not at Temperature
2 = At Temperature
3 = Failed
4 = Cable Disconnected
5 = Near Temperature
6 = Over Temperature

Heater Status 2

(U20 - Bit 22)

0-6

Short

Status of Acoustic Sensor's inlet tube
heater:
0 = Off
1 = Not at Temperature
2 = At Temperature
3 = Failed
4 = Cable Disconnected
5 = Near Temperature
6 = Over Temperature

Sample Number

(U20 - Bit 21)

0-255

Byte

The current sample number.

Frequency (U20 - Bit 20)

Float

The current frequency.

Amplitude (U20 - Bit 19)

Float

The current amplitude.

Reserved

(U20 - Bits 18-0)

Must always be 0.